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Thermomechanical Study of H13 Hot Forged Bars

H13 is a hot work tool steel used as extrusion and forging dies in metal forming industries. It is characterized by its high thermal stability and wear resistance. This alloy is generally produced by hot forging of large size cast ingots. However, the selection of the hot forging parameters significantly influences the evolution of the microstructure, and hence the final properties, as well as the formability of the alloy, which may lead to surface cracks and internal defects during forging. In the present work, a thermomechanical study of H13 was conducted to quantify the impact of different deformation conditions on microstructure evolution and to better understand the characteristics of this steel. Specifically, the kinetics of grain growth and carbide dissolution at different forging temperatures were determined. Then, hot compression tests enabled the modeling of stress strain curves for the purpose of implementation in a simulation software.
Product:
2022 4th International Ingot Casting Rolling Forging Conference
PR-530-003
Lea Ebacher, Mohammad Jahazi, Jean-Benoit Morin, Benjamin Ritchey
June 21, 2022
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